检索结果-南通市图书馆

Efficient degradation of orange II by ZnMn2O4 in a novel photo-chemical catalysis system

Frontiers of Chemical Science and Engineering 2020年第6期14卷 956-966页

作者： qingzhuo ni Hao Cheng Jianfeng Ma Yong Kong Sridhar Komarneni School of Environmental and Safety Engineering Changzhou UniversityChangzhou 213164China Guangxi Key Laboratory of Green Processing of Sugar Resources College of Biological and Chemical EngineeringGuangxi Science University of and TechnologyLiuzhou 545006China Jiangsu Key Laboratory of Oil-Gas Storage and Transportation Technology Changzhou UniversityChangzhou 213164China Department of Ecosystem Science and Management and Materials Research Institute The Pennsylvania State UniversityUniversity ParkPA 16802USA

A ZnMn2O4 catalyst has been synthesized via a sucrose-aided combustion method and characterized by various analytical *** is composed of numerous nanoparticles(15-110 nm)assembled into a porous structure with a specific surface area(SSA)o f 19.1 m^2.g^-*** catalytic activity has been investigated for the degradation of orange II dye using three different systems,i.e.,the photocatalysis system with visible light,the chemocatalysis system with bisulfite,and the photochemical catalysis system with both visible light and *** last system exhibits the maximum degradation efficiency of 90%,much higher than the photocatalysis system(15%)and the chemocatalysis system(67%).The recycling experiments indicate that the ZnMn204 catalyst has high stability and reusability and is thus a green and eximious ***,the potential degradation mechanisms applicable to the three systems are discussed with relevant theoretical analysis and scavenging experiments for *** active species such as Mn(III),o2^-,H^+,eaq,So4^- and Ho^-are proposed to be responsible for the excellent degradation results in the photo-chemical catalysis system with the ZnMn2o4 catalyst.

关键词： ZnMn2O4 photo-chemical catalysis bisulfite dye degradation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Attractive nanofiber structure based on Cu-Ti/metal sandwich film with excellent electrocatalytic performance for ethanol oxidation

引用

Journal of Materials Science & Technology 2020年第23期58卷 215-221页

作者： qingzhuo Hu Fabao Zhang Jinjun Zhang Wei Jiang Bo Zhang Engineering Research Center of High-Performance Copper Alloy Materials and Processing Ministry of EducationHefei University of TechnologyHefei 230009China School of Materials Science and Engineering Hefei University of TechnologyHefei 230009China Office of Academic Affairs Hefei University of TechnologyHefei 230009China

The support materials are an important part of catalysts and they are the dispersant,adhesive,and support for other *** this study,three types of thin films with different structures were used as the precursor to prepare loading Pd *** one-step dealloying method was used to prepare a semiconductor nanofiber film(NFF)support material with upward directional growth from the ***/NFF and Pd/ni O/NFF loaded Pd catalysts were prepared using NFF as the support material,and the electrochemical catalytic properties for ethanol oxidation in alkaline media were *** votammetry showed that the NFF support material effectively inhibited agglomeration of palladium,increased the number of active sites of Pd,and improved the electrocatalytic properties of Pd for ethanol *** addition,the Pd/ni O/NFF loaded Pd catalyst obtained by modification with nickel oxide significantly improved the electrocatalytic performance for ethanol oxidation compared with the Pd/NFF loaded Pd *** results show that ni O is conductive to absorption of oxygen-containing groups on the surface of the catalyst and can further improve the electrocatalytic ability of Pd for ethanol *** of the above results demonstrate that the support material prepared by the dealloying method has application prospects in load-type catalysts.

关键词： Dealloying Support material Load-type catalyst Pd/NFF Pd/niO/NFF

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

混合金属盐对水稻秸秆热裂解特性的影响

引用

农业工程学报 2015年第2期31卷 246-252页

作者：姬登祥盛佳峰于凤文曾庆倬艾宁计建炳浙江工业大学化学工程学院浙江省生物燃料利用技术研究重点实验室杭州310032

为研究金属盐对水稻秸秆热裂解特性的影响,在Li2CO3-Na2CO3-K2CO3(LNK碳酸盐)中分别添加氯化盐和硫酸盐与水稻秸秆干混,采用热重分析与傅里叶变换红外光谱联用技术(thermogravimetric analyzer coupled with Fourier transform infrared... 详细信息

为研究金属盐对水稻秸秆热裂解特性的影响,在Li2CO3-Na2CO3-K2CO3(LNK碳酸盐)中分别添加氯化盐和硫酸盐与水稻秸秆干混,采用热重分析与傅里叶变换红外光谱联用技术(thermogravimetric analyzer coupled with Fourier transform infrared spectrometry,TG-FTIR)研究了水稻秸秆的热裂解过程,并使用Coats-Redfern法计算了热裂解过程的动力学参数。结果表明:在LNK碳酸盐作用下,热裂解的活化能降低。与添加硫酸盐相比,氯化盐作用下热裂解活化能更低,热裂解反应更易进行。与纯水稻秸秆热裂解相比,LNK碳酸盐能使CO、CH4、苯酚、甲苯、甲酸和水等的浓度明显下降,而CO2浓度显著上升。在LNK碳酸盐基础上,氯化盐和硫酸盐均能促进水稻秸秆热裂解产物的生成和逸出。当温度高于550℃时,碳酸盐能催化Boudouard反应,氯化盐和硫酸盐均能促进该反应的进行。其中,ni Cl2和Co Cl2对该反应的影响尤其明显。研究为生物质资源的高值化利用提供了一定的理论参考。

关键词：秸秆热裂解金属盐氯化盐硫酸盐

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：